baber/WOPTO huggingface dataset:
Patent GB-1056448-A (GB)
Title: Improvements in or relating to fluid control valve actuators
Inventor: FRY JEREMY JOSEPH
IPC: F16K31/05
Filed: 1963-12-07
Abstract: 1,056,448. Valves; clutch control. ROTORK ENGINEERING CO. Ltd. March 8, 1965 [Dec. 7, 1963], No. 44063/63. Headings F2L and F2V. The uni-directional rotation of a shaded pole electric motor 15 is converted by a motion translating mechanism into successive rotation of a valve operating shaft 75 in different directions to open and then to close a valve. The motor output shaft 21 rotates a shaft 49, via a gear train 38, 39, 41, 42, 45, 46, 47, to a pinion 48 which is freely rotatable thereupon and which is connected to one end 51 of a spring 50 comprising a uni-directional clutch upon the shaft 49. The motion translating mechanism is formed by a crank 73, fixed upon valve operating shaft 75, which is connected to a carrier plate fixed upon shaft 49 at a selected one of a number of apertures 70 (Fig. 3, not shown) spaced at different radial distances from shaft 49 whereby the valve displacement may be varied. Limit switches are operable by a cam 65 on shaft 49 and overrun of the motor is prevented by an arm 31 forming part of a pivotable assembly upon a clapper arm 23 (Fig. 2, not shown) and which is urged by a spring 29 into the path of arm 22 mounted upon motor shaft 21 and is moved out of the path of arm 22 when the clapper arm 23 is attracted towards the motor coil when this is energized. An indicating lever 81 is secured to output shaft 75 and co-operates with a scale 83. The valve may be manually actuated from squared end portion 64 of shaft 49 which produces an uncoiling action upon spring 50 and thereby avoids rotating gear 48. The arrangement is such that a 180 degrees rotation of shaft 49 produces a corresponding 90 degrees rotation of valve operating shaft 75 in either direction. In an alternative construction for larger motors using a two-stage reduction gear, the limit switches may be operated at diametrally opposed positions of a connecting plate on the final gear with the connecting rod eccentrically mounted on the final gear-wheel and eccentrically coupled with a plate on the output shaft such that a continuous 360 degrees movement of the gear-wheel produces an outward and return movement of the output shaft through 90 degrees.
Patent GB-1182620-A (GB)
Title: Improvements in or relating to Electric Pulse-Regenerating Circuit Arrangements
IPC: H04L25/08
Filed: 1967-09-28
Abstract: 1,182,620. Pulse circuits. SIEMENS A.G. 28 Sept., 1967 [29 Sept., 1966], No. 44151/67. Heading H3T. In a pulse-shaping and delaying circuit, a transistor T1 is biased in the non-conductive direction by a voltage derived by integrating the input signals in one circuit (R2, D2, C5), the pulse being fed to the input of the transistor T1 by a second integrating circuit (R3, D3, C6) so that the transistor T1 only becomes conductive after a time dependent upon the time constants of the two integrating circuits. The output of T1 is also coupled to a further pulse forming circuit (Fig. 3) via a diode D5 controlled by input pulses via a further integrating circuit (R1, C4, D4). As shown, pulses at E having a duration of 100 Ás., the shortest interval between two pulses being 20 Ás., are fed via an interference-removing low-pass filter TP and an integrating circuit R3, D3, C6 having a time constant of 24 Ás. to the base of T1. Each negative-going input pulse at E cuts off diode D3 and allows T1 to become saturated after a delay due to the discharge of C6, giving a positive-going step at the collector. The output terminal T2 is normally isolated by a diode D5 until diode D4 becomes non-conductive after a delay due to the charging of C4, when D5 passes the collector pulse to the output terminal T2. The output pulses terminated by T1 being turned off by the trailing edge of the input pulse at E. The pulse at T2 may be fed to a monostable pulse-shaping circuit or, as shown in Fig. 3, to a circuit comprising a series-connected pair of transistors T2, T3. T3 is normally conductive, holding the output terminal I at 12 V. until a pulse arrives from D5 when T2 becomes saturated, setting the output A to 0 V., the voltage dropped in D7 turning off T3 for the duration of the pulse.
Patent GB-1215245-A (GB)
Title: Improvements relating to electrical circuit arrangements for converting a variable rate of pulse transmission into a related electrical output quantity
Inventor: SHARP DENIS
IPC: H03K9/06
Filed: 1968-09-18
Abstract: 1,215,245. Antiskid brake systems. MULLARD Ltd. 27 June, 1969 [18 Sept., 1968], No. 44276/68. Heading F2F. In an antiskid braking system, pulses of frequency proportional to wheel speed are derived from a pickup device 1, e.g. an electromagnetic pickup positioned adjacent to a ferromagnetic toothed ring which is attached to the wheel. The pulses are amplified in an amplifier 2 before application to a frequency to D.C. converter 3 (see Division H3) the output of which is differentiated in a differentiator 4 to produce a voltage proportional to deceleration. This voltage is amplified in a power amplifier 5 and applied to a solenoid 6 operating the antilock servo 7. The amplifier 5 may be provided with A.C. coupling with such a time constant as to release the antilock servo after a predetermined period. Separate systems may be provided in respect of each road wheel of a vehicle, or a single system may be provided for two rear wheels driven by a propeller shaft, the sensor being associated with the shaft. The Specification describes a transistor operating circuit (Fig. 4, not shown).
Patent GB-1433890-A (GB)
Title: Bearings
IPC: F16C33/12
Filed: 1973-09-21
Abstract: 1433890 Al-Sn bearing alloy VANDERVELL PRODUCTS Ltd 20 Dec 1974 [21 Sept 1973] 44468/73 Heading C7A A bearing material is manufactured from strip of composition 18-22% Sn balance aluminium which is in the as cast condition by cold-rolling the strip. The strip may be subsequently annealed for 24 hours at 275‹C, brushed clean, further cold-rolled, edge sheared and formed into halfbearing liners, cylindrical bushes, thrust washers, conical bushes or conical washers. The alloy may also contain one or more of Cu, Si, Mg, Zn, Mn, Fe up to 5% in total.
Patent GB-1096970-A (GB)
Title: Resin-reinforced rubbers
IPC: C08K5/3492
Filed: 1966-10-05
Abstract: A composition comprises an unvulcanized, vulcanizable rubber gum and 0.5 to 60% by weight of the rubber of an alkoxymethylmelamine of the formula:  <FORM:1096970/C3/1> wherein 2 R's are alkoxymethyl of 2-11 carbon atoms and the remaining R's are hydrogen, hydroxymethyl, or alkoxymethyl of 2-11 carbon atoms.  The composition may also contain an acid catalyst for the melamine resin, conventional fillers such as carbon black and vulcanizing ingredients.
Patent GB-1002614-A (GB)
Title: A disinfecting dry cleaning process
IPC: D06L1/04
Filed: 1961-12-13
Abstract: A disinfecting dry cleaning composition comprises conventional solvents, an intensifier with a water retention of at least 5% water, measured at 80% relative humidity, formaldehyde and the maximum quantity of water which does not lead to shrinking, matting or other damage of the textiles, the formaldehyde being added as a substantially anhydrous solution in n-propyl or iso-propyl alcohol, in an amount such that substantially all pathogenic germs in the textile being treated are killed.  The intensifier may be anionic, non-ionic, cationic or an ampholyte. Anionic intensifiers specified are alkali metal, ammonium or amine salts of sulphonic acids, e.g. sodium petroleum sulphanates of molecular weight about 380-480, sodium dioctyl-sulphosuccinic acid, alkali metal or ammonium salts of Twitchell reagent, salts of aromatic alkyl sulphonic acids especially alkyl benzene sulphonic acids with a molecular weight of at least 380, e.g. the methoxy-propylamine salt of dodecyl-benzene sulphonic acid, salts of sulphated products together with buffering agents, soaps, e.g. of methoxypropylamine and morphaline and oleic acid. Non-ionic intensifiers specified are condensates of 1 mol. of octylphenol, nonylphenol, coconut fatty alcohol, oleyl alcohol, oleic acid amide, oleic acid, a fatty acid partial ester of glycerine, sorbitol or mannitol and 2-10 mols. of ethylene oxide or propylene oxide.  Cationic intensifiers specified are diisobutylphenoxyethoxyethyl - benzyl - dimethyl ammonium chloride, oleylamidopropyl-dimethyl ammonium chloride, oleylamidopropyl-trimethyl ammonium chloride, oleylamidopropyl-trimethylammonium methosulphate, octadecyloxyethyl-dioxyethyl ammonium acetate, tetradecyl - 4,5 - dichlorobenzyl - dimethyl ammonium chloride, and didodecyl-dimethyl ammonium bromide.  Ampholytes specified are amino-carboxylic acids with molecular weights of at least 320. Mixtures of the above intensifiers with detergents which are normally insoluble in the dry cleaning solvents, e.g. alkali metal soaps, alkali metal or ammonium salts of fatty alcohol sulphates, sulphated oils, fatty acid condensation products and aliphatic sulphonic acids may be employed. Solution promoters, e.g. ethanol, propanol, butanol, benzyl alcohol, cyclohexanol and oleyl alcohol may be employed.  Dry cleaning solvents specified are carbon tetrachloride, perchlorethylene, trichloroethylene, trichlorotrifluorethane, benzene and white spirit.
Patent GB-924282-A (GB)
Title: Control systems for electric motors
IPC: H02P5/685
Filed: 1960-12-30
Abstract: 924,282. Control of several D.C. motors. ELEC. TROTECHNISCHE INDUSTRIE VOORHEEN WILLEM SMIT & CO. N.V. Dec. 30, 1960 [Dec. 30, 1959], No. 44803/60. Class 38 (3). [Also in Group XXXV]  A loop circuit comprises generators 2, 3 and motors 6, 7, the generators being associated with exciters 10, 11, having current-responsive windings 14, 16 and reference windings 15, 17, so that the current in the loop circuit is determined by the excitation of the reference windings. The motors have exciters 29, 30, provided with speed-responsive windings 35, 37, and reference windings 36, 38, the speed-responsive windings being supplied from tachometer generators 39, 40. When the motor 6, which may drive a hoist, is heavily loaded and its speed decreases the counter-excitation provided by winding 35 is reduced so that the exciter 29 passes increased current through field winding 27. The voltage developed across resistor 31 overcomes a bias voltage across potentiometer 53 whereby current is passed through rectifier 57 to energize control winding 56 of saturable reactor 26. This increases the excitation of windings 15, 17, to increase the current in the loop circuit.
Patent GB-1081286-A (GB)
Title: Fluorescent materials
IPC: C09K11/77
Filed: 1964-11-03
Abstract: A luminescent material comprises a b -orthostrontium phosphate, activated by Cu+ and Tb+ + +, stabilized in the b -phase by one of the elements magnesium, calcium, zinc, cadmium or aluminium, which have ionic radii less than strontium, and produced by firing at 1150-1250 DEG  C. in a strean of moist nitrogen containing hydrogen, the copper being 0.2 to 2.0% of the strontium, and the terbium being 0.2-6% of the strontium.  By varying the ratio of the activators to the strontium, the fluorescent colour may be varied from blue-white to green. The material may be used at temperatures up to 550 DEG  C., e.g. in H.P.M.V. lamps.
Patent GB-1494334-A (GB)
Title: Catch held slideable operating devices
IPC: H01H13/56
Filed: 1975-09-12
Abstract: 1494334 Catches PLESSEY CO Ltd 12 Sept 1975 [17 Oct 1974] 44934/74 Heading E2A [Also in Division H1] A slidable operating device similar to that disclosed in Specification 1280061 having a ball catch 17 cooperating with the stepped floor of a closed track 16 has an extra reentrant portion 24 added to the track wherein the ball 17 latches against wall 16e in a position E to hold the slider 2 in a third position 14, intermediate end position 13 and the other end position shown in full lines. As shown, two actuator studs 9a and 9b are provided and are cammed by sloping surface 7 such that in the position of slider 2 corresponding to ball 17 being latched at A, both studs are actuated (as shown), in the position 13 wherein ball 17 is at position C, both studs are unactuated; and on position 14 stud 9a is unactuated while stud 9b is actuated. Finger 10 or another part of slider 2 may be used in place of studs 9a, 9b. In a modification a further re-entrant portion is added to the return leg of the track 16 to give an intermediate location (G, Figures 4 and 5, not shown) of the ball 17 between positions B and C.
Patent GB-1034009-A (GB)
Title: Forming electrostatic latent images
IPC: G03G15/05
Filed: 1964-11-06
Abstract: 1,034,009. Electrophotographic apparatus, RANK XEROX Ltd. Nov. 6,1964 [Nov. 12,1963], No. 45231/64. Heading G2H. In apparatus for simultaneously charging and exposing a photo conductive layer a web 2 having a conductive backing 9 is fed beneath a biased control screen 12 at least one side of which has a photo conductive layer 22. The screen may be conductive interwoven strands, copper mesh or metallic screening. An image of an original 1 is projected through the web 2 on to the screen, while a corona discharge is connected to power supply 24. The layer 22 becomes more conductive in illuminated areas and a latent electrostatic charge image conforming to original 1 is formed on web 2. The latent image is developed in apparatus 30 by resinous toner particles mixed with carried particles and fixed in chamber 31 by heat or solvent vapour. In another embodiment, Fig. 2 (not shown) a conductive shield 38 surrounds an electrode 17. A latent electrostatic image is formed on member 35 which may be of glass, paper, cellulose acetate or polyester film. The upper surface of member 35 is light reflecting or if member 35 is transparent table 36 is reflecting. In another embodiment, Fig. 3 (not shown) the screen 12 is attached to an earthed conductive shield 25. The screen 12, Fig 4 (not shown) may be positioned between electrode 17 and projector 40. A heating element 43, Fig. 5 (not shown) is positioned beneath member 35 of heat deformable plastic, e.g., Stay belite or Piccolastic, so as to form, upon '.eating, a frosted image pattern of a latent electros.atic image.
Patent GB-1181410-A (GB)
Title: Improved Device for Igniting Outflowing Gas for the Production of Heating Flames
Inventor: TASCHLER FELIX
IPC: F23Q1/02
Filed: 1967-10-05
Abstract: 1,181,410. Lighters. F. TASCHLER. 5 Oct., 1967 [6 Oct., 1966], No. 45463/67. Heading F4F. In an ignition arrangement for a gas-fired burner such at the heater of a propane gas fired soldering iron a partial stream of gas and air is branched off from the main stream in a pipe 2 via an opening 8 into an annular chamber 10 where it mixes with the air in the chamber to form an explosive mixture which is ignited by a spark from a flint and wheel 12, the burning gas returning through the opening 8 to ignite the main stream. In a modification, Fig. 5, gas is admitted to the chamber 10 by opening a valve 15 having a ball 18 and the flame passes along a duct 21 to ignite the main stream of gas.
Patent GB-1192376-A (GB)
Title: Improvements in Welding Electrode Holders
Inventor: WILSON JAMES
IPC: B23K9/28
Filed: 1966-10-12
Abstract: 1,192,376. Arc welding electrode holders. ENGLISH ELECTRIC CO. Ltd. 10 Oct., 1967 [12 Oct., 1966], No. 45530/66. Heading H5H. In a welding electrode holder of which the handle is a tubular body 4 through which a power cable 16 extends to a pair of jaws 18, 30, for gripping the welding electrode, the body 4 includes an inner sleeve 2 forming an annular air space 6 between the body and the sleeve, and the sleeve 2 has a bore 19 which connects with ambient air at both ends to provide a cooling flow of air therethrough. The body 4 has holes 8, 28 and 10 for entrance and exit of cooling air also to space 6, and the convected ambient air flows through the bore or annular space 19 between the cable 16 and sleeve 2 by a cylindrical end portion 20 of the fixed jaw 18 being formed with longitudinal grooves 22, Fig. 3 (not shown), through which space 19 communicates with the atmosphere at the jaw end of the handle. The movable jaw 30 is pivoted to fixed jaw 18 by a pin 36 on jaw 30 engaging in slots in flanges 38 on the jaw 18, the pin being held resiliently therein by the spring 40 which urges the jaw 30 towards jaw 18 so that the jaw parts 18<SP>1</SP>, 34, grip the electrode. The jaw parts are covered by insulating pieces 42. Sleeve 2 is of nylon reinforced with chopped strands of glass and body 4 is of polypropylene.
Patent GB-1048789-A (GB)
Title: Device for treating a liquid and magnet for such a device
IPC: H01F7/02
Filed: 1965-10-28
Abstract: <FORM:1048789/C1/1> The poles 1, 2 of a device for the magnetic treatment of liquid have inwardly projecting pole-faces 6, 7 which produce a flux transverse to the duct 8, the flux circuit being completed by abutting lugs 3, 4 of opposite polarity at the sides of the duct at each end.  Several of these devices may be stacked together. Speed of flow and magnetic flux may be altered to suit the liquids to be treated.
Patent GB-1092840-A (GB)
Title: Composite film structure and process for its production
IPC: C08J7/052
Filed: 1965-10-29
Abstract: A film structure has a base layer of biaxially oriented polypropylene film, flame-treated on one or both surfaces, and a coating of copolymer of vinylidene chloride and at least one other copolymerisable unsaturated monomer on the flame treated surface or surfaces, the outer surface of the coating or one or both of two coatings being flame-treated sufficiently form a strong bond with a coating of polyethylene which may be applied thereover the polypropylene film may be passed through the flame eminating from a burner supplied with a gaseous mixture of paraffinic or olefinic hydrocarbon fuel and oxygen-enriched air. The fuel equivalence ratio may be 0.9 to 1.3 and the oxygen ratio 0.25 to 0.30.  The copolymer may contain 75-95% by weight of vinylidene chloride.  Many comonomers are specified such as alkyl acrylates wherein the alkyl group has 1-3 carbon atoms.  The copolymer coating is applied from an aqueous dispersion containing 40-50% solids.
Patent GB-1248934-A (GB)
Title: Improvements in or relating to warp shedding mechanisms for looms
Inventor: LAURITSEN WILLIAM EGER NYBOE
IPC: D03C3/20
Filed: 1968-09-27
Abstract: 1,248,934. Jacquards, W. E. N. LAURITSEN. 27 Sept., 1968 [29 Sept., 1967], No. 45983/68. Heading D1E. A centre closed shed single lift jacquard has pneumatic selection and magnetic lifting of the healds and one pattern card may operate a block of similar groups of healds for weft wise pattern repeats or separate shedding mechanisms as in small ware looms. A movable air box 29 (Fig. 6) presses a continuous perforated pattern a perforated cards against a presser block 7 and holes in the cards permit air to enter corresponding pipes 8 which lead to distribution blocks 9 to 12. The block 9 passes any of thirty six air impulses to each of the blocks 10 to 12 which each have thirty six outlet pipes 32 leading to pattern mechanisms 15 to 17. Each pattern mechanism 15 to 17 has thirty six balls 25, 25a (only two shown) at the outlets of the pipes 32 and each ball is in a chamber with an outlet 28 leading to a further chamber 19 which may be either pressurised or exhausted. Each ball chamber has a needle 21, 22 passing through it into the outlets 28 and each needle has armatures 45, 47 between which are healds 50, the armatures co-operating with magnetic plates 41, 49. In use, an air impulse from a hole in the pattern card cause a ball (25a in Fig. 5) to move to the right, blocking the path of the needle 22 into passage 28, whereas the ball 25 receives no impulse and stays to the left leaving its passage 28 free. The magnetic plate 41 is then energised and raised, lifting with it the needle 21 but not the needle 22 whose path is blocked by the ball 25a. The magnetic plate 49 is then energised and lowered taking with it all those needles whose paths had been blocked. At open shed the pressure in the pipes 32 is relieved and the chamber 19 pressurised so that, upon closing the shed, all the balls are returned to the left for a further 'selection.
Patent GB-1309338-A (GB)
Title: Production of a dietary beer
IPC: C12G3/02
Filed: 1971-10-04
Abstract: 1309338 Dietary beer BRAUEREI-INDUSTRIE AG FUR 4 Oct 1971 [7 Oct 1970] 46085/71 Heading C6E A process for producing a dietary beer, which has low alcohol and carbohydrate contents and a low calorific value, involves fermenting wort in a first main fermentation step only to an apparent degree of fermentation of 40-85%, boiling to reduce the alcohol content to about 1%, replacing the evaporated liquid with water or wort, cooling and filtering the resulting liquid and adding fresh yeast for a second main fermentation step, clarifying the resulting brew when the fermentation in the second main fermentation step has been initiated, completing the second main fermentation step after a solution of diastase (e.g. malt extract) enriched with marginal dextrivases and/or dextrimdecomposing enzymes of different origin have been added, storing the resulting beer and subjecting it to a final clarification. The first main fermentation step is typically carried out for 2-5 days at 4-8‹ C, the second at 12-20‹ C for 7-10 days. Half the total amount of hops used in making the beer may be added to the original wort to be boiled and the other half introduced after the end of the first fermentation step and before the boiling to remove alcohol. The worts may contain as much extract as those used in the production of strong beer. The replacement liquid may be 50-150% by volume of further wort.
Patent GB-1011285-A (GB)
Title: Method of insulating conductors
IPC: C09D129/14
Filed: 1961-12-27
Abstract: A wire-coating composition comprises a polyvinyl acetal, e.g polyvinyl formal plus a phenolic resin and optionally a melamine-aldehyde resin and a polyurethane.  Minor amounts of polyesters and epoxy resins may also be included.ALSO:A metal conductor is coated with a plurality of layers of a cured polyvinyl acetal resin composition and of a polyimide composition comprising the cured condensation product of an aromatic tetracarboxylic acid with an aromatic diamine containing from 6-16 carbon atoms or a saturated aliphatic diamine containing up to 6 carbon atoms.  The polyvinyl acetal composition may also contain phenol - aldehyde resins, melaminealdehyde resins or polyurethanes.  The polyimide coatings may be produced by applying polyamides and heating these to convert them to polyimides.  Preferably four coats of the acetal resin and two of the polyimide are applied.  Best results are obtained when the polyacetal resin is applied first.  In the examples copper wire is coated by dipping in the resins, being cured after each application.
Patent GB-1443962-A (GB)
Title: Separation of uranium isotopes
IPC: B01J41/20
Filed: 1973-10-05
Abstract: 1443962 Uranium isotope chromatography ASAHI KASEI KOGYO KK 5 Oct 1973 [5 Oct 1972] 46534/73 Heading B1H [Also in Division C1] Uranium-235 is concentrated by passing an aqueous solution containing U(VI) complex anions through an anion exchange material so that the anions are adsorbed on a portion of the exchange material and then passing an aqueous solution of a reducing agent through the exchange material to elute the anions adsorbed while reducing them to U(IV) complex ions. The eluted solution containing U(IV) complex ions may be passed through an anion exchange material containing an oxidising agent to oxidise the U(IV) complex ions to U(VI) complex anions, adsorbing the U(VI) complex anions on the exchange material and forming a U complex ion band and then passing a solution of a reducing agent through the exchange material to move the uranium complex ion band. The anion exchange material may be resins of addition copolymers and condensation polymers and also cellulose and inorganic types.